package com.learn.codesourcelearn.spring;

import java.util.HashMap;

/**
 * @author yekaile
 * @Date 2020/11/28 18:33
 */
public class Test {
    public static void main(String[] args) {
        HashMap<String,String> map= new HashMap<>();
        map.put("xx","xx");
        System.out.println(-4>>>1);
        System.out.println(-4>>1);
    }
}
